1/24 Water Resources and Pollution

How much of the atmosphere is composed of nitrogen gas?

• 87%
• 38%
• 78%
• 21%

How do plants get the nitrogen they need?

• from the air
• from the soil or water in which they live
• from the Sun
• from broken-down rocks

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

• bacteria
• plants
• animals
• producers

Tags

NGSS.MS-LS2-3

This gas makes up 21% of the atmosphere

• ozone
• oxygen
• nitrogen
• water vapor

Photosynthesis

• absorbs CO2
• releases CO2

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Respiration

• absorbs CO2
• releases CO2

Which of the following is a consequence of excess carbon building up in Earth’s atmosphere?

• The amount of breathable oxygen available to living things decreases
• Global temperatures change, affecting normal weather patterns.
• The amount of solar energy reaching the earth’s surface decreases.
• Global air pressure increases making it more difficult for plants and animals to breathe.

Tags

NGSS.MS-ESS3-5

A particular golf course is using large amounts of nitrogen fertilizer. What process could move this nitrogen into a local stream?

• volatilization
• nitrogen fixation
• runoff
• ammonification

Tags

NGSS.MS-LS2-3

How are burning of fossil fuels and volcanic eruptions similar with respect to their effects on the carbon cycle?

• Both remove carbon from the atmosphere.
• Both add carbon to the atmosphere.
• Both add carbon to the lithosphere.
• Both remove carbon from the lithosphere.

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

What is happening at 1?

• respiration: releasing CO2
• decomposing CO2 in the soil
• photosynthesis: absorbing CO2
• turning CO2 from the atmosphere into organic molecules

Tags

NGSS.MS-LS2-3